This part is designed to replace a similarly shaped part found inside of the door handle mechanism of a 1986 Nissan 300zx. This will fit similar vehicles including 1984-1989 280z and 300zx. The OEM part is made of plastic and fails due to a design flaw cause by a combination of the type of material (plastic) and the shape.
This part exactly matches the dimensions but should be printed with the stainless steel option for best results. Plastic is also available at a much lower price.